<select id=s size=5>
</select><input onblur="s.add(new Option(value,value))"><input onclick="try{s.remove(s.selectedIndex)}catch(e){}" type=button value=del>
</select><input onblur="s.add(new Option(value,value))"><input onclick="try{s.remove(s.selectedIndex)}catch(e){}" type=button value=del>
selectID.remove(selectID.option[index]);